LM140LAH-15/883 - NATIONAL SEMICONDUCTOR

LM140LQML

LM140LQML Series 3-Terminal Positive Regulators

Literature Number: SNVS381

LM140LQML Series

3-Terminal Positive Regulators

General Description

The LM140L series of three terminal positive regulators is

available with several fixed output voltages making them

useful in a wide range of applications. The LM140LA is an

improved version of the LM78LXX series with a tighter out-

put voltage tolerance (specified over the full military tem-

perature range), higher ripple rejection, better regulation and

lower quiescent current. The LM140LA regulators have ±2%

OUT

specification, 0.04%/V line regulation, and 0.01%/mA

load regulation. When used as a zener diode/resistor com-

bination replacement, the LM140LA usually results in an

effective output impedance improvement of two orders of

magnitude, and lower quiescent current. These regulators

can provide local on card regulation, eliminating the distribu-

tion problems associated with single point regulation. The

voltages available allow the LM140LA to be used in logic

systems, instrumentation, Hi-Fi, and other solid state elec-

tronic equipment. Although designed primarily as fixed volt-

age regulators, these devices can be used with external

components to obtain adjustable voltages and currents.

With adequate heat sinking the regulator can deliver 100 mA

output current. Current limiting is included to limit the peak

output current to a safe value. Safe area protection for the

output transistor is provided to limit internal power dissipa-

tion. If internal power dissipation becomes too high for the

heat sinking provided, the thermal shut-down circuit takes

over, preventing the IC from overheating.

Features

nLine regulation of 0.04%/V

nLoad regulation of 0.01%/mA

nOutput voltage tolerances of ±2% at T

= 25˚C and ±4%

over the temperature range

nOutput current of 100 mA

nInternal thermal overload protection

nOutput transistor safe area protection

nInternal short circuit current limit

Output Voltage Options

Device ID Output Voltage

LM140LA-5.0 5V

LM140LA-12 12V

LM140LA-15 15V

Ordering Information

NS Part Number JAN Part Number NS Package Number Package Description

LM140LAH-5.0/883 H03A 3LD T0–39 Metal Can

LM140LAH-12/883 H03A 3LD T0–39 Metal Can

LM140LAH-15/883 H03A 3LD T0–39 Metal Can

Connection Diagrams

TO-39 Metal Can Package (H)

20155302

Bottom View

See NS Package Number H03A

March 2006

LM140LQML Series 3-Terminal Positive Regulators

Equivalent Circuit

20155301

LM140LQML Series

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Absolute Maximum Ratings (Note 1)

Input Voltage 35V

Internal Power Dissipation (Note 2) Internally Limited

Operating Temperature Range −55˚C ≤T

≤+125˚C

Maximum Junction Temperature +150˚C

Storage Temperature Range −65˚C ≤T

≤+150˚C

Lead Temperature (Soldering, 10 sec.) +300˚C

Thermal Resistance

Still Air @0.5W 201˚C/W

500LF / Min Air Flow @0.5W 79˚C/W

(@1.0W) 38˚C/W

ESD Susceptibility (Note 3) TBD

Quality Conformance Inspection

Mil-Std-883, Method 5005 - Group A

Subgroup Description Temp ˚C

1 Static tests at 25

2 Static tests at 125

3 Static tests at -55

4 Dynamic tests at 25

5 Dynamic tests at 125

6 Dynamic tests at -55

7 Functional tests at 25

8A Functional tests at 125

8B Functional tests at -55

9 Switching tests at 25

10 Switching tests at 125

11 Switching tests at -55

12 Settling time at 25

13 Settling time at 125

14 Settling time at -55

LM140LQML Series

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LM140LA-5.0 Electrical Characteristics

DC Parameters

The following conditions apply, unless otherwise specified.

DC: V

= 10V, I

= 40mA

Symbol Parameter Conditions Notes Min Max Unit Sub-

groups

Quiescent Current 4.5 mA 1

4.2 mA 2

Output Voltage 4.9 5.1 V 1

= 20V, I

= 5mA 4.8 5.2 V 1, 2, 3

= 20V, I

= 100mA 4.8 5.2 V 1, 2, 3

= 7.2V, I

= 5mA 4.8 5.2 V 1, 2, 3

= 7.2V, I

= 100mA 4.8 5.2 V 1, 2, 3

Load

Load Regulation 5mA ≤I

≤40 mA -20 20 mV 1

5mA ≤I

≤100mA -40 40 mV 1

Line

Line Regulation I

= 100mA, 7.5V ≤V

≤25V -30 30 mV 1

7V ≤V

≤25V -30 30 mV 1

∆I

Quiescent Current Change 5mA ≤I

≤40mA -0.1 0.1 mA 1, 2, 3

7.5V ≤V

≤35V -0.5 0.5 mA 1

AC Parameters

Symbol Parameter Conditions Notes Min Max Unit Sub-

groups

RR Ripple Rejection ƒ = 120Hz, e

=1V

RMS

55 dB 4

LM140LA-12 Electrical Characteristics

DC Parameters

The following conditions apply, unless otherwise specified.

DC: V

= 19V, I

= 40mA

Symbol Parameter Conditions Notes Min Max Unit Sub-

groups

Quiescent Current 4.5 mA 1

4.2 mA 2

Output Voltage 11.75 12.25 V 1

= 27V, I

= 5mA 11.5 12.5 V 1, 2, 3

= 27V, I

= 100mA 11.5 12.5 V 1, 2, 3

= 14.5V, I

= 5mA 11.5 12.5 V 1, 2, 3

= 14.5V, I

= 100mA 11.5 12.5 V 1, 2, 3

Load

Load Regulation 5mA ≤I

≤40mA -40 40 mV 1

5mA ≤I

≤100mA -80 80 mV 1

Line

Line Regulation I

= 100mA, 14.5V ≤V

≤30V -65 65 mV 1

14.2V ≤V

≤30V -65 65 mV 1

∆I

Quiescent Current Change 5mA ≤I

≤40mA -0.1 0.1 mA 1, 2, 3

14.3V ≤V

≤35V -0.5 0.5 mA 1

AC Parameters

Symbol Parameter Conditions Notes Min Max Unit Sub-

groups

RR Ripple Rejection ƒ = 120Hz, e

=1V

RMS

47 dB 4

LM140LQML Series

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LM140LA-15 Electrical Characteristics

DC Parameters

The following conditions apply, unless otherwise specified.

DC: V

= 23V, I

= 40mA

Symbol Parameter Conditions Notes Min Max Unit Sub-

groups

Quiescent Current 4.5 mA 1

4.2 mA 2

Output Voltage 14.7 15.3 V 1

= 30V, I

= 5mA 14.4 15.6 V 1, 2, 3

= 30V, I

= 100mA 14.4 15.6 V 1, 2, 3

= 17.6V, I

= 5mA 14.4 15.6 V 1, 2, 3

= 17.6V, I

= 100mA 14.4 15.6 V 1, 2, 3

Load

Load Regulation 5mA ≤I

≤40mA -50 50 mV 1

5mA ≤I

≤100mA -100 100 mV 1

Line

Line Regulation I

= 100mA, 17.3V ≤V

≤30V -70 70 mV 1

17.3V ≤V

≤30V -70 70 mV 1

∆I

Quiescent Current Change 5mA ≤I

≤40mA -0.1 0.1 mA 1, 2, 3

17.5V ≤V

≤35V -0.5 0.5 mA 1

AC Parameters

Symbol Parameter Conditions Notes Min Max Unit Sub-

groups

RR Ripple Rejectionƒ f = 120Hz, e

=1V

RMS

47 dB 4

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed

specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test

conditions.

Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package junction

to ambient thermal resistance), and TA(ambient temperature). The maximum allowable power dissipation at any temperature is PDmax =(T

Jmax -T

A)/θJA or the

number given in the Absolute Maximum Ratings, whichever is lower.

Note 3: Human body model, 100pF discharged through 1.5KΩ

Note 4: It is recommended that a minimum load capacitor of 0.01 µF be used to limit the high frequency noise bandwidth.

LM140LQML Series

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Typical Performance Characteristics

Maximum Average Power

Dissipation

Maximum Average

Power Dissipation

20155307 20155308

Peak Output Current Dropout Voltage

20155310 20155311

Output Impedance Ripple Rejection

20155312 20155313

LM140LQML Series

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Typical Performance Characteristics (Continued)

Quiescent Current Quiescent Current

20155314

20155315

Typical Applications (Note 4)

Fixed Output Regulator

20155305

*Required if the regulator is located far from the power supply filter.

**See note 3 in the electrical characteristics table.

Adjustable Output Regulator

20155306

VOUT = 5V + (5V/R1 + IO)R2

5V/R1=3I

Oload regulation (L,) [(R1 + R2)/R1] (L, of LM140LA-5.0)

LM140LQML Series

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Revision History

Released Revision Section Originator Changes

03/10/06 A New release to corporate format L. Lytle 3 MDS data sheets converted into one Corp.

data sheet format. Drift tables were removed

from electrical characteristics since not

performed on 883 product. MDS data sheets

MNLM140LA-05-H Rev. 0B0,

MNLM140LA-12-H Rev. 0B0 and

MNLM140LA-15-H Rev. 0B0. will be

archived.

LM140LQML Series

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Physical Dimensions inches (millimeters) unless otherwise noted

TO-39 Metal Can Package (H)

NS Package Number H03A

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves

the right at any time without notice to change said circuitry and specifications.

For the most current product information visit us at www.national.com.

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WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR

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(b) support or sustain life, and whose failure to perform when

properly used in accordance with instructions for use

provided in the labeling, can be reasonably expected to result

in a significant injury to the user.

2. A critical component is any component of a life support

device or system whose failure to perform can be reasonably

expected to cause the failure of the life support device or

system, or to affect its safety or effectiveness.

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LM140LQML Series 3-Terminal Positive Regulators

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